Apparatus for the sampling from continuously moving materials

ABSTRACT

An apparatus for removing sample pieces from continuously moving materials in open width of textiles, paper, plastics and the like, comprising a mounting support, a preferably circular punching knife, a plane punching plate and an actuating appliance for the knife. The mounting support allows the materials to pass between the knife and the punching plate. Samples are cut, when the edge of the knife is touching the punching plate. This is done in a very short time, because the knife is actuated by detonation of a cartridge. The samples are collected in a tray beyond the punching plate. The samples are pushed through an aperture in the punching plate, which is somewhat smaller than the samples, into the tray by a blast of air, caused by the movement of the knife.

l mited States Patent Schraud et al.

[ 1 Mar. 14, 1972 [54] APPARATUS FOR THE SAMPLlNG FROM CONTINUOUSLYMOVING MATlElRllALS [72] Inventors: Alfred W. Schraud, Op de Bult 18;Claus Tischbein, Alter Postweg 111, both of Maschen, Germany 22 Filed:l)ec.8, 1969 m AppLNo: 888,201

[52] 11.5. Cl ..83/167, 83/588, 83/590, 83/684, 83/919 [51] Int. Cl..B26d 7/00 [58] Field 01 Search ..83/523, 588, 590, 684, 919, 83/167;130/124, 130

[56] References Cited UNITED STATES PATENTS 2,431,528 11/1947 Wells, Jr.et al. ..83/9l9 X 2,853,133 9/1958 Norman et al. ....83/9l9 X 2,939,2106/1960 Cannon ..83/919 X 3,075,421 1/1963 Teplitz ..83/9l9 X 3,329,0517/1967 Derwin 83/684 X 3,495,488 2/1970 Addis et al ..83/9l9 X FORElGNPATENTS OR APPLICATIONS 800,139 8/1958 Great Britain ..83/684 49,9619/1918 Sweden ..83/919 406,895 8/1966 Switzerland ..30/130 PrimaryExaminer-William S, Lawson 5 7] ABSTRACT An apparatus for removingsample pieces from continuously moving materials in open width oftextiles, paper, plastics and the like, comprising a mounting support, apreferably circular punching knife, a plane punching plate and anactuating appliance for the knife.

The mounting support allows the materials to pass between the knife andthe punching plate. Samples are cut, when the edge of the knife istouching the punching plate. This is done in a very short time, becausethe knife is actuated by detonation of a cartridge. The samples arecollected in a tray beyond the punching plate. The samples are pushedthrough an aperture in the punching plate, which is somewhat smallerthan the samples, into the tray by a blast of air, caused by themovement of the knife.

7 Claims, 2 Drawing Figures PATENTEUMAR M I972 3, 648 555 sum 1 n; 2

Fig. 7 Inventors Alfred Schruud Chous Tischbein MM W PMENTEWAR w I972SHEET 2 BF 2 INVENTORS Alfred Schrcud Claus Tischbein APPARATUS FOR THESAMPLING FROM CONTINUOUSLY MOVING MATERIALS The invention relates to anapparatus which allows the sampling of textile, paper and syntheticmaterials during continuous processing operations in open width and at apredetermined moment.

Textiles, paper, films, synthetic materials are generally processednowadays in continuous, open width operations. For the purpose ofcontrolling quality of the goods and performance of machines it isadvisable to check color, weight, moisture contents and other factors inregular intervals by taking samples.

Sampling up to now requires stopping the machine. This reduces theoutput, risks tearing a fabric and very often also adversely effects thecharacter of a sample. The new apparatus avoids all these problems.

The present invention is comprising a punch knife in the shape of thesample to be taken, fastened to a bolt, which is suddenly pushed downvertically onto the material and impacts on a plane punching platearranged on the reverse side of the material. By the knife edge touchingthis plate, the sample is punched out in an extremely short time. Theknife retracts at such a speed that it punches the sample withoutimpeding the movement of the fabric and without jamming the apparatusthrough impact with the moving material.

Characteristic elements of the invention are illustrated in theaccompanying drawings of one of several alternatives to knife propulsionand apparatus support:

FIG. 1 shows the sample-puncher operated by a cartridge, and

HO. 2 shows a complete apparatus fixed to a fork-type support.

In FIG. 1 a sectional view of a web is shown. Above the said web thereis the circular knife 11 in the bell-shaped mounting support 12 which isfastened to the bolt 13. The said bolt is arranged in the cylindrichousing 14 in the bushes l5 and 16. The said bolt is kept in the shownlimit position by the spring 17. The cartridge 18 is inserted in bush16. Head 19 is screwed on to the bush 16. Head 19 contains the striker20 and the trigger 21. The apparatus is prepared for punching bywithdrawing striker 20. The elements described before are connected witha mounting support by means offlange 22.

The ring 23 is fixed in a concentric position to the knife in acylindric support 24 with an interposed rubber ring 25. The support 24also serves as collecting tray for the punched-out sample. Lateralopenings 26 permit to remove the sample. Ring 23 is somewhat smaller inthe inner diameter than the edge of the knife. The knife is made fromhardened steel and the ring from softer material, for example, frombrass. The bell-shaped mounting support 12 produces a blast during themovement, whereby the punched-out sample is shifted to the support 24.The support 24 is fastened by screws 27.

Cup springs 28, rubber ring 25 and coil spring 17 supply the energy forspeeding up the retraction movement of the knife; they also allowadjustment of elements 11 and 23 which touch each other.

In FIG. 2 the fork-type mounting support 30 encloses a selvedge of web10. At one fork end of the said mounting support the actuating appliance29 is provided for the punch knife 11, whereas the other fork end holdsthe sample collecting tray 24 with the ring 23.

When taking a sample the fork-type support 30 may either be put down onto a suitable part of the machine or held at handle 32 and the actuatingappliance 29. Handle 31 serves for transporting the apparatus.

It should be further understood, that the present disclosure is for thepurpose of illustration only and that the invention includes allmodifications and equivalents which fall within the scope of theappended claims.

We claim:

1. An apparatus for removing sample pieces from continuously movingmaterials in open width of textiles, paper,

plastics and the like comprising: I

a. a mounting support, a owing said materials to pass between upper andlower parts of said apparatus;

b. an actuating appliance connected to the upper part of said mountingsupport, said actuating appliance consisting of a cylindrical housing, abolt sliding in bushes inserted in both ends of said housing, a springto hold said bolt in upper position, said upper bush containing acylindrical hole to insert a cartridge, a head fixed on top of saidupper bush containing a striker, and a trigger to ignite said cartridge;

. a preferably circular knife connected with said bolt;

. a plane punching plate inserted in an support connected to the lowerpart of said mounting support.

2. The invention according to claim 1 wherein said punching plate has anaperture somewhat smaller than the sample to be punched.

3. The invention according to claim 1 comprising a collecting tray forthe sample, which supports the punching plate.

4. The invention according to claim 1 wherein said mounting supportcomprises a U-shaped mounting support, which holds the actuatingappliance on one end and the punching plate on the other end.

5. The invention according to claim 1 comprising two inflexible bracketsto which the actuating appliance and the punching plate are mounted, toallow the material passing through between them.

6. The invention according to claim 1 comprising the said head fixed onsaid upper bush, by threads.

7. The invention according to claim 1 comprising a bellshaped mountingsupport for said knife which causes a blast during movement, shiftingthe sample downwards.

1. An apparatus for removing sample pieces from continuously movingmaterials in open width of textiles, paper, plastics and the likecomprising: a. a mounting support, allowing said materials to passbetween upper and lower parts of said apparatus; b. an actuatingappliance connected to the upper part of said mounting support, saidactuating appliance consisting of a cylindrical housing, a bolt slidingin bushes inserted in both ends of said housing, a spring to hold saidbolt in upper position, said upper bush containing a cylindrical hole toinsert a cartridge, a head fixed on top of said upper bush containing astriker, and a trigger to ignite said cartridge; c. a preferablycircular knife connected with said bolt; d. a plane punching plateinserted in an support connected to the lower part of said mountingsupport.
 2. The invention according to claim 1 wherein said punchingplate has an aperture somewhat smaller than the sample to be punched. 3.The invention according to claim 1 comprising a collecting tray for thesample, which supports the punching plate.
 4. The invention according toclaim 1 wherein said mounting support comprises a U-shaped mountingsupport, which holds the actuating appliance on one end and the punchingplate on the other end.
 5. The invention according to claim 1 comprisingtwo inflexible brackets to which the actuating appliance and thepunching plate are mounted, to allow the material passing throughbetween them.
 6. The invention according to claim 1 comprising the saidhead fixed on said upper bush, by threads.
 7. The invention according toclaim 1 comprising a bell-shaped mounting support for said knife whichcauses a blast during movement, shifting the sample downwards.